性急 せいきゅう Meanings な-adjective, Noun hasty; rash; rushed; hurried; impatient; impetuous; quick-tempered Kanji 性 nature. Read as セイ. 急 sudden. Read as キュウ. Example sentences あなたは何でも性急過ぎる。You are all too quick. 性急な判断は危険です。Quick judgements are dangerous. Jinuma: Japanese Dictionary · Word lists